Paper-perforator.



Patented Dec. 18, I900.

0. SCOFIELD. "PAPER PERFORATOR" (Application filed Nov 22, 1899.)

(No Model.)

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NITED STATES CHARLES SCOFIELD, OF MARENGO, ILLINOIS.

PAPER-PERFORATOR.

SPECIFICATION formingpart of Letters Patent N 0. 664,296, dated December 18, 1900.

7 Application filed November 22, 1899. Serial No. 737,949. (No model.)

To all whom it may concern:

Be it known that I, CHARLES SCOFIELD. a citizen of the United States, residing at Marengo, in the county of McHenry and State of Illinois, have invented certain new and useful Improvements in Paper Manufactures, of which the following is a specification.

My invention relates to paper manufactures, and especially to perforators, and has for its object to provide a strong and durable, but simple and inexpensive device provided with means of securelyholding the paper during the operation of perforation and the withdrawal ot' the means used. This object I accomplish in the manner and by the means hereinafter more fully described in detail and particularly pointed out in the claims, reference being had to the accompanying drawings, in which like reference-letters indicate like parts in both views.

Figure l is a side elevation of my invention, partly broken away. Fig. 2 is a detail perspective view of the sliding frame.

My invention consists of two standards A,

provided with perforated feet a, adapted to be boltedvor otherwise firmly secured to a table-top, and with grooves (1, extending from the bottom toward the top of said standards A. Extending across the tops of said standards A and connecting them is a cross-head B, made integralwith said standards A or rigidly secured to them. In each end of the cross-head B round sockets a are formed, and in the center of said crosshead is an interiorly-screw-threaded hole b. 'Working in said hole bis a complementary screw-threaded lever 0, provided at its top with a handwheel 0 or other suitable means of operation. Arms D, having longitudinal slots cl in their lower parts and their upper parts reduced in size, rounded, and surrounded by coiled springs d, are connected at their lower ends by a plate E, made integral 'with said arms D or rigidly secured to them. The plate E has a longitudinal slot e extending nearly its whole length. The arms D are adapted to slide on the inner faces of the standards A, the coiled springs d being seated in the sockets a Across-piece F, to the centerof which the lower end of the lever O is revolubly secured, has its endsfextended into the grooves a and the slots d. To the lower part of the cross-piece F is secured a perforating-comb G, which extends through the slot 6.

The operation of my invention is as follows: The parts being in place, the paper is placed under the cross-piece F, with the teeth of the comb G on the line in which the perforations are to be made. By screwing the lever 0 down, as soon as the ends f of the cross-piece F lose contact with the tops of the slots 01 the plate E is pressed by the coiled springs 01 on the paper and remains so until the perforations are made and the cross-piece F raised by screwing the lever 0 up, until the teeth of the comb G are withdrawn from the paper, the endsf again come in contact with the tops of the slots (1, raise the cross-piece F, and release the paper.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A paper-perforating machine provided with a frame having grooves, arms provided with a plate, a perforating-comb having its ends extending through said arms and engaging and sliding in the grooves of the frame, substantially as shown and described.

2. A paper-perforating machine, provided with a grooved frame, slotted arms provided with a slotted plate, and a perforating-comb adapted to slide in said frame and slotted arms, substantially as shown and described.

3. A paper-perforating machine provided with a grooved frame, slotted arms provided with a slotted plate,aperforating-comb adapt ed to slide in said frame and slotted arms, means for operating said perforating-comb, and means for operating said slotted plate, substantially as shown and described.

4. In a paper-perforating machine, provided with vertically-grooved frame, a perforating-comb, spring operated slotted arms adapted to slide in said frame, and a slotted plate connecting the lower ends of said arms and adapted to bear on the paper, the perforatingcomb passing through said slotted plate, substantially as shown and described.

5. In a paper-perforating machine, provided with vertically-grooved frame, springoperated slotted arms adapted to slide in said frame, a slotted plate connecting the lower ends of said arms and adapted to bear on the paper, a perforating-comb passing through said slotted plate and means for operating the same, substantially as shown and described.

6. A perforating-machine consisting of a cross head, grooved standards supporting said cross-head, spring-operated slotted arms sliding in said frame, a slotted plate connect.- ing, the lower ends of said arms, a screw-lever passing through said cross-head, a crosspiece attached to the lower end of said lever, the

10 ends of said cross-piece entering said grooves 

